Complete dissociation by chirped laser pulses designed by adiabatic Floquet analysis

Abstract

The tools of adiabatic Floquet theory are developed to study the control of population transfer by intense chirped laser pulses. We give a formulation of the adiabatic evolution for systems with a slowly varying frequency, which exhibits an effective frequency carrying relevant physical information. These tools are applied to dissociation. The path leading to dissociation corresponds to a single instantaneous Floquet state evolving adiabatically. We obtain $96\%$ dissociation of the HF molecule by a chirped ultrashort infrared laser pulse of duration $2.3$ ps and intensity ${10}^{13}$ W/cm${}^2$.